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wood wool slab decking for flat roofs

Specify SPRA - Radmat

ply membranes in flat roofing. A system .. Where a surface finish, ballast, paving slabs, or decking .. Woodwool is very rarely used in new construction. If.

Flat Roofing and Waterproofing Systems - Alumasc Roofing Systems

information on all aspects of Flat Roofing, Waterproofing and .. Derbigum was winner of the Flat Roofing Alliance 2004 Product .. woodwool slab deck.

Roof Decks & Rough Roofing Surfaces | Sika-Trocal | Sika-Trocal

Suitable deck's for use beneath Sika-Trocal roofing systems include profiled metal sheet, plywood, oriented strand board (OSB), timber, woodwool cement slab,.

Guidance Flat Roof Deck - BuildingRegs4Plans

The material used for the roof deck must be moisture resistant and will usually be plywood, OSB or timber boards although concrete and woodwool slab or.

Woodwool Slab 600mm x 1200mm - Ecomerchant

Woodwool is a building board suitable for carrying lime or clay renders and plasters. It is made from mineralised wood, giving a board that is breathable "vapour.

Typical Life Expectancy of Building Components Element . - eTool

Precast concrete slab. 78. Timber joists. 90 . Timber batten on concrete slab raised access floor. 45. Disposal . Woodwool decking to flat roof. Bitument felt.

When to overlay flat roofs with single ply membranes - IKO Polymeric

5 Aug 2016 . Want to know is it possible to overlay an existing flat roof with Single Ply? . Woodwool slabs must be considered as a fragile roof deck.

Flat Roof Deck Types & Design Guides - Bauder

The surface should be wood float finished and the slab allowed to cure thoroughly and dry out to provide a suitable surface to . OSB used for flat roof decking should be type OSB/3 or OSB/4, conforming to BS EN 300:1997. . Woodwool slabs.

GreenSpec: Housing Retrofit: Concrete Flat Roof Insulation

The techniques of concrete flat roof retro-insulation are essential knowledge be able to design and specify correctly. . The roof deck is kept warm through placing the insulation above it. . Mineral wool slab (adhered / mechanically fixed)* . Gas fuelled heating · Wood fuelled heating · Radiators & underfloor heating · Solar.

ROOFING - Mastic Asphalt Council

It should be taken into account that other flat roofing materials .. Roof decks of wood wool slabs should be formed from slabs conforming to. Type SB of BS.

SIG Design & Technology Flat Roof Overlay - When to use Single .

19 Aug 2016 . When to use single ply membranes for a flat roof overlay . Even stripping back to the original roof deck may not give the required . Woodwool slabs were also used to fully over screed with a minimum 50mm screed thickness.

What is Woodwool and is it Safe? - Sustainable Build

2 Jun 2017 . This answers the question about the building material woodwool: what . to slabs to be used in decking, insulating boards and even roof slabs.

Stramit Board or Straw Board - YouTube

20 Oct 2012 . . old flat roofs with new EPDM flat roofs, when we removed the old flat r. . old flat roof we found the flt roof decking was this stramit board some.

Woodwool Slabs - HDM

His mas ter's the sis dealt with wa ter leak age in flat roofs in Tu ni sia, and he wrote a Build ing Is sue on the topic in 1989. He is the house ex pert . ther mal in su la tion as 100 mm of wood wool slab re quires about 4 m nat u ral stone, 1.8 m.

Woodwool Slab Deck - Hambleside Danelaw

Woodwool Slab Deck. Dryseal Drawing Woodwool Slab Deck. Installing the Dryseal flat roofing system on a woodwool slab deck with a warm roof build up.

Woodwool - Sandberg LLP

It was used generally during the 1960s to provide insulation often at roof level . Woodwool boards were used both as a permanent shuttering to flat slabs but.

Re-covering bitumen felt flat roofs: (February 2013)

Planning permission is unlikely to be required for the re-covering of flat roofs ... Wood wool slabs used for flat roof decking will typically be 50-75mm thick.

How do I insulate a flat roof? - SuperHomes

Warm deck flat roof insulation is now the standard way to insulate a flat roof – click to enlarge . Wood fibre batts (adhered / mechanically fixed), 300, 0.22. 400, 0.17. 500, 0.15. Mineral wool slab (adhered / mechanically fixed), 150, 0.22.